A.varnish B.white gloss paint C.bitumen D.paint
单项选择题The pilot boats are （）blue, with the “PILOT in white.
A.written B.painted C.painting D.repaired
单项选择题Ships always float on water and they are easy to （）.
A.rust B.dirty C.clean D.wash
单项选择题The most common kinds of （）used on board ship are as follows: primer coat, undercoat, topcoat, heat-resistant paint, varnish and anti-fouling paint.
A.cement wash B.bitumen C.paint D.varnish
单项选择题Are there any （）before washing the decks?
A.require B.required C.requirements D.requiring
单项选择题The sailors do cleaning and repair work （）the bosun.
A. under the supervision of B. with the help of C. in charge of D. in the charge of
